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Abstract
Acids and bases concept is very important and fundamental concept in learning chemistry. It is one of the chemistry subjects considered as an abstract and difficult concept to understand. The aim of this research was to explore student’s misconception pattern about acids and bases phenomena in daily life, such as calcium contained tap water. This was a qualitative research with descriptive methods. Participants were 546 undergraduate students of chemistry education and chemistry program, and graduate students of chemistry education in West Java, Indonesia. The test to explore students’ misconception about this phenomena was essay test. The results showed that there were five patterns of students’ misconception in explaining the phenomena of calcium carbonate precipitation on heating tap water. Students used irrelevant concepts in explaining this phenomena, i.e. temporary hardness, coagulation, density, and phase concepts. No students had right answer in explaining this phenomena. This research contributes to design meaningful learning and to achieve better understanding.
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Details
1 Department of Chemistry Education, Indonesia University of Education, Bandung, Indonesia
2 Chemistry Study Program, Cenderawasih University, Jayapura, Indonesia
3 Department of Chemistry Education, Indonesia University of Education, Bandung, Indonesia; Study program of Hospital Management, Piksi Ganesha College, Bandung, Indonesia